Olivia's salary is 80% less than Cindy's salary. When their salaries are decreased by 40%, their combined salaries will be $1800. How much was Cindy's salary before the decrease?
| |
Olivia |
Cindy |
Total |
| Before |
1 u |
5 u |
6 u |
| Change |
- ? |
- ? |
- 2.4 u |
| After |
? |
? |
3.6 u
$1800 |
100% - 80% = 20%
OliviaCindy =
20100 =
15 Combined salaries at first
= 1 u + 5 u
= 6 u
Decrease in the combined salaries
= 40% x 6 u
=
40100 x 6 u
= 2.4 u
Combined salaries in the end
= 6 u + 2.4 u
= 3.6 u
3.6 u = 1800
1 u = 1800 ÷ 3.6 = 500
Cindy's salary before the decrease
= 5 u
= 5 x 500
= $2500
Answer: $2500
